Most Action Wireless products shipped worldwide. All Action Wireless products ship from wholesale warehouse in USA.
|  | | | Customer Reviews: | | | Average Customer Review: ( 567 customer reviews )
Write an online review and share your thoughts with other customers.
Most Helpful Customer Reviews
465 of 475 found the following review helpful:
 Stay with the SB6120 Jul 08, 2011
By Ayame
I have tried both the SB6120 and the SB6121 and the signal levels and speeds were the same on both.
The SB6121 is a little smaller than the SB6120 but runs much warmer than the SB6120. Looks like they tried to cram too much hardware into too small of a space.
My SB6121 did not come with the power save button (it's listed as an optional feature), so about the only difference between the two models is the design. Both the SB6120 and the SB6121 use the same firmware: labeled SB612X.
So unless you want the different looking LED lights and a smaller and warmer box for a higher price, stay with the SB6120.
As far as speeds are concerned: the multiple channel bonding on these DOCSIS 3.0 modems is nice for sustained constant speeds. It also makes it easier for your ISP to enforce the speed cap if they choose to do so (Comcast in my case does). I was getting 20+ Mbps down and 3+ Mbps up on my old Linksys DOCSIS 2.0 modem, however that was the peak when the transfer first started, then it would taper off.
The DOCSIS 3.0 modem stays right at the 12/2 ceiling of my speed tier, but at least the speeds stay right up there and do not drop off after a few seconds.
287 of 291 found the following review helpful:
Does the job well/tip for Comcast users Sep 29, 2011
By T. Hyatt
Out of nowhere, I was having excruciatingly slow internet speed on Comcast. The Comcast tech advised that my Motorola SB 4100 was at the "end of life" and that I should upgrade. Skeptical, I purchased this modem which is a DOCSIS 3.0 (and backwards compatible) modem. It worked. I went from a 2mbps download speed to over 17mbps. What a difference. There was one installation glitch that you need to be aware of. When you hook up the modem (connect the coax cable, connect the ethernet cable, and plug it in, that's it), and then try to get online, it will direct you to a Comcast self-activation screen (no other site is available). After entering my account number and phone number and hitting the "next" button, I got a blank screen, and nothing happens. So I called Comcast and they said that usually happens if you are doing an upgrade; it mostly works only for a new service connection. However, it is a simple matter to give the tech your MAC address and the serial number. After about 5 minutes, while he stayed on the line, it came alive, no problem. BUT, here's the thing: the serial number they need is the CUSTOMER serial number. This is only found on the bottom of the Motorola box the modem came in. This is different from the "S/N" serial number that is on the label that is on the instruction sheet and on the bottom of the modem itself. The customer S/N has letters in it; the regular S/N has only numbers in it and is too long. My first Comcast tech didn't know that and it took a day to sort it out. Other than that, it works well with my iMac and Apple Airport Extreme Base wireless router. Enjoy
166 of 175 found the following review helpful:
 Great Modem works with Comcast Jun 29, 2011
By Falcon
Bottom line: this is a great modem and it works with Comcast. Comcast just doesn't have its act together. This modem is not only on their approved list, it has a three star rating, which, according to Comcast, is "the highest and most thorough level of testing." When the cable installer got here (I got a new line installed), he said that this modem was NOT on the Comcast list. Since I still had my DSL line working, I showed him that not only did Comcast approve the modem but that Comcast thoroughly tested it. He had to call the "office" to activate the internet service. The "office" didn't want to set up internet service for this modem; the "office" stated that this wasn't an approved modem. Well, he recalled the "office" and got someone else and they set up the service. I've been happy ever since. I'm supposed to get up to 20 Mbps download and 4 Mbps upload. My computers are connected wirelessly. Speednet states that I am getting 20 to 25 Mbps downloads and the upload speed is between 3 and 3.5 Mbps. I've gotten similar values with speakeasy and other internet speed testing sites. I have a lot of devices connected: three computers (wireless), two TVs (one wired, one wireless), three different game consoles (connected to the wired TV), two Nintendo 3DS (wireless), one printer (wireless), and an iPod Touch (wireless). At times all of these devices are running at the same time - the computers are streaming You Tube videos, one of the TVs is streaming Netflix, etc. The modem handles all of it effortlessly. I'm really pleased with this modem.
44 of 44 found the following review helpful:
Works and Easy Comcast Self Hookup Dec 14, 2011
By RightReviewNow
12/14/2011 Just received the Motorola SB6121 SURFboard DOCSIS 3.0 Cable Modem today. Followed the self-install instructions included with the modem, using Comcast internet, and a Medialink Wireless N router, and was up and running in 20 minutes.
Here's how my setup went. Disconnect your old modem. Connect the SB6121 modem to your internet coaxle cable. Now connect the ethernet cable to both the SB6121 modem and your computer. Power up the SB6121 modem and wait for all lights to stop flashing (must have solid lights), then power up your computer. Now, open Internet Explorer browser and wait for the Xfinity screen to automatically show up on your Internet Explorer's screen. Enter your Comcast account number and the phone number associated with your Comcast account on the screen, where asked, and press next. The SB6121 modem will then be automatically identified and recognized. Press next to accept the Motorola SB6121 cable modem, then wait a few minutes for the next screen to show up while the information is being processed, then press finished. 3 screens total. Disconnect the ethernet cable from your computer and connect it to your router. Now, power both the SB6121 and your router off and wait 10 seconds. Now, power the SB6121 modem on and wait for all the lights to show themselves. Now, power on your router. You should be able to go online wirelessly. Literally that simple. The Comcast Xfinity self-install screens did not ask me for a MAC address or a serial number. Total time - about 20 minutes to remove the old modem and install the SB6121. Best part, no having to call tech support and no frustration!
I was quite surprised at how easy the SB6121 was to install, as it seems like I'm one of those guys who takes 2-3 hours to hook anything up. Seems like there's always that one thing I didn't know, or think, about, and I'm usually on the phone with tech support for a while having a lackluster time. I replaced an old Comcast RCA modem which I had no problems with, but was tired of renting from Comcast at $84 per year. The SB6121 will pay for itself in a year's time, is a 3 docsis modem versus 2 on my old modem, and works well thus far.
23 of 24 found the following review helpful:
Works on Comcast in Fremont, CA Oct 06, 2011
By Lenny
Summary (for the "tl/dr" people) : it works on Comcast in my area, but it took a few tries to get the self registration to work. If possible, do your configuration from a wired computer, and have your Comcast account number before you disconnect your old modem.
---
Comcast had been nagging me to upgrade my modem. They've already de-registered my DOCSIS 2.0 modem once, and I decided to upgrade, and see if there's any of the promised speed improvement.
I've read through many reviews, and it seems like it can be a bit hit or miss with different areas. This model is on Comcast's supported list, so I decided to give it a try. The 6120 was not available directly from Amazon when I bought this.
I ran some benchmarks with my old RCA cable modem just before disconnecting. I'll provide numbers later. I also went to my account page to get my account number, which I know was required for the self registration.
Self installation went OK with a couple of slight hiccups.
Step 1 : switch off router, turn off and disconnect old modem.
Step 2 : connect new modem, leave router off, power it up. Modem went through a bunch of blinking light routines. According to a technician from Comcast, this is when the cable operator pushes firmware update to the modem. Seems to be taking a while, so I went away and played some games on my tablet.
Step 3 : the top 4 lights stayed on solid. Time to turn on the router. Waited for router to come back up, and went back to my PC. Waited until my router managed to get DHCP configuration. Went to comcast.com for the self registration page. Entered my account number and phone number. Clicked through a few screens. Then my connection went dead.
Step 4 : waited around, hit reload a few times, and it proceeded to the next page. Then connection died again. When it came back, I'm back at the "enter account number and phone number" page.
Step 5 : went through all that again, and this time it managed to activate without a hitch. Ran through some benchmarks. My tablet, which was on, was a little confused and kept bringing me back to the activation page. I disconnected it from wifi, reconnected, and it was fine.
Performance numbers :
Test / Before / After
Ping time / 12 ms / 15 ms
Download / 17.3 Mbps / 25.4 Mbps
Upload / 3.1 Mbps / 4.6 Mbps
Retested this a few days later. I have 12 ms ping time, 24.5 Mbps download, 4.4 Mbps upload.
(I realize my speed is not spectacular, but I'm not paying for the higher speed tiers)
So, there is a nice bump in speed. There's been no stability issues so far. I'll update this review with any long term observations.
See all 567 customer reviews on Amazon.com
|
| | |
|
|
